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This paper presents a new centralized adaptive under frequency load shedding method. Occasionally, after initial frequency drop following severe disturbances, although the system frequency returns to its permissible value, however, the system might become unstable due to voltage problems. In this regard, the paper proposes a new centralized adaptive load shedding method to enhance the voltage stability...
This paper presents an adaptive nonlinear observer design to investigate and fix precise estimation issues of dc link capacitor voltages in a powerful three-phase multi-level two ports converter. An Adaptive Back Stepping approach using the phase currents as observer inputs was applied to estimate the capacitor voltages in two ports multilevel cascaded H-Bridge converter. Capacitance of dc link capacitor...
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